Numerical Simulation of Natural Cavitating Flow over Axisymmetric Bodies

摘要：

　　The hydrodynamic characteristics of bodies are greatly affected by cavitation.Coupling with natural cavitaion model, a multiphase CFD method is developed and is employed to simulate supercavitating and partial cavitating flows over axisymmetric bodies using FLUENT 6.2.The results of supercavitation of a disk cavitator agree well with the boundary element method (BEM), the analytical relations and available experimental results.The present computations and the BEM results are compared with experiments for partial cavitating flows over three typical axisymmetric bodies and the results are discussed.Limitations are on the pressure prediction in the cavity closure region for the BEM, although fairly good quantitative agreement is obtained for three axisyrnmetric bodies at most of cavitation region.The present computational model on cavitating flows are validated, offering references and bases for hydrodynamic researches.

关键词： Natural cavitating flow Multiphase mixture model Numerical simulation Axisymmetric body

作者: Qiankun Liu Ye Gao

作者单位: College of Aerospace and Civil Engineering,Harbin Engineering University Harbin,Heilongjiang,China

会议类型: 国际会议

会议名称: the 2012 International Conference on Vibration, Structural Engineering and Measurement (2012年振动、结构工程与测量国际会议(ICVSEM2012))

会议地点: 上海

会议语种:英文

页码: 825-830

在线出版日期: 2012-10-19（万方平台首次上网日期，不代表论文的发表时间）